Question

What is the inverse of the function below?

f(x) = 11x + 9

Answer 1

If f(x) sends x to y, i.e.\[y=11x+9\] then the inverse function sends y to x, i.e.\[x=11y+9\] so if you solve for y in the second equation, replace f(x) with f^-1(x) for the inverse function.

Answer 2

A.
f -1(x) = -11x - 9
B.
f -1(x) = x - 9

11
C.
f -1(x) = x - 11

9
D.
f -1(x) = 9 + 11x

@xeph

Answer 3

nvm